WIP: fix undefined variable error

Author: Totktonada

graphql/core/rules.lua

@@ -400,7 +400,7 @@ function rules.variablesAreUsed(node, context)
     for _, definition in ipairs(node.variableDefinitions) do
       local variableName = definition.variable.name.value
       if not context.variableReferences[variableName] then
-        --error('Unused variable "' .. variableName .. '"')
+        error('Unused variable "' .. variableName .. '"')
       end
     end
   end

graphql/core/validate.lua

@@ -259,6 +259,12 @@ local visitors = {
       end
     end,
 
+    children = function(node)
+        print('DDDDDD: ' .. require('yaml').encode(node))
+        return node.value
+    end,
+    -- XXX: add visitor for inputObject?
+
     rules = { rules.uniqueInputObjectFields }
   },